Concealed hinge.



, E. N. BALDWIN, Jn.

CONGEALED HINGE. APPLICATION FILED Nov. 21, 1912.

1,078,237. Y PatentedNov.11,1913.

25 '22 'O/ 20 Q Q EL: N. BALDWIN, m; or srmirroma. conna'rrcur.

coNcEALEn HINGE.; I A

Lowest.

Specication of Letters atent.

Patented Nov. 11, 1913.

Application nledlovember 21, 1912. Seria/1K0. 732,669,

T o all whom t may concern: Be it known that I, EL] N. BALDWIN, Jr., a.citizen of the United States, residing at Stratford, county of Faireld,State of Connecticut, have invented an Improvement in Concealed Hinges,'of which the following is a specification.

This invention relates to the class of concealed hinges illustrated anddescribedA in my pending application Serial Number y 714,551, filedAugust 12, 1912, in whichthe hinge is ,so constructed as to be whollyconcealed in the closed position, lies flush with the surface of the ambin the open position and positively retains the-door out of contact withun automobile or coach body in the open position, and my presentinvention has for its object to provide a hinge of this characterdisclosing no opening into the jamb 1n the open position, such an openmghaving been unavoldable 1n every hinge heretofore produced, This Iaccomplish by' providing an arc-shaped carrying arm for the door,adapted to swing under an outer plate coverin the face of the jamb,which passes throng ra slot between the base plate ot thejamb member andsaid outer plate, which slot is always filled by the carrying arm. Inother Words, the carrying arm passes into and out of the jamb pocket atthe vside of thepocket and the side of the jamb instead of jamb.

With this end in View I have devised the novel concealed hinge of whichthe following descriptionn in connection with the accompanying drawingis a specification, reference characters being used to indicate theseveral parts.

Figure 1 is a horizontal section on the line 1-1 in Fig. 3, looking inthe direction of the arrows, the door being in the closed position; Fig.2 a similar View showing the hinge in plan and the door in the openposition; Fig. 3 a view partly in section on the line 3-3 in Fig. 1,looking in the direction' of the arrows, showing the hinge in elevationand partly broken away; Fig. 4 a section on the line 4 4 in Fig. 2looking in the direction of the arrows, the hinge being in elevation inthe open position; Fig. 5 a section on the line 5- 5 in'Figs. 1 and 3,looking in the direction ofl the arrows,show ing the face of the jamb,with the hinge in the closed position, and Fig. 6 is a section on theline indicated by G'in Fig. 2, looking through the face of theHeretofore, so far as I am aware, in every in the .direction of thearrow, the jamb mem-` ber being in elevation.' Y i 10 denotes thedoorlnember of the hinge,"

as awho-le, 11 the jamb member, 12 a door, 13 a jamb and 25 a pocketinthe jamb into which the jamb member is recessed. The jamb membercomprises a .base plate 14 which for convenience I describe as lying inthe verticalplane, attaching flanges 1,5' which lie in the verticalplane atvangles to, the plane of. the base late and side plates 16 whichlie in the. orizontal Y plane and connect the `attaching flanges to,the-base plate. The door member comprises an attachingplatc 17, anarc-shaped carrying arm 18 connected thereto andan attachingarm 19formed integral with the carrying arm. The base plate and the attachingarm are provided with corresponding hinge eyes 20 through which a pin 21passes 1n the usual manner. It should be noted that the design of thetwo members of the hinge is such that each member may be formed integralfrom sheet metal and that the attaching arm and the carrying arm of thedoor member are made relatively wide, ywhich gives them great strengthand enables them to carry any amount of weight that can be placed uponthem under the ordinary conditions of use. In the closed posit-ion thecarrying arm swings into the pocket be tween the side plates of the jambmember.

hinge of this character the carrying arm has passed in and out, inswinging to the closed and open positions, through a large and unsightlyopening in the face of the jamb, which it was impossible to cover. In mypresent hinge the door member is so designed as to enable me to coverthe opening in the 'fac-e of the jamb, between the attaching anges 15 ofthe jamb` member, by means of an outer plate 22 secured to the jamb bythe screws 23 which secure the jamb member. The hinge eyes, the carryingarm and the attaching arm are so laid out relatively to each other as topermit the carrying arm to be curved in an arc of a circle of which thehinge pin is the center and to swing under the outer plate and through aslot 24 in the base plate of the door member, that is at the side of thejamb member and the jamb and wholly within the face line instead ofthrough the face of the j amb. The attaching arm lies at a more or lessacute angle to the carrying arm and the latter at a moreor less acuteangle to attaching plate 17 which is secured to the door. In the closedposition of the door, as in Fig. 1, the outer plate will lie in theangle between the carryin plate and the attaching plate. The door 1sshown as pr0- vided wlth a rearwardv extension 26 which covers the slotin the closed position. In Fig. 4'tl1e ends of the outer plate are shownas made longer than the jamb member and closed about the attachingfianges, to retain said plate in engagement with the member.

Having thus described my invention I claim:

1. A hinge of the characterdescribed con` sisting ofa jamb member havinga base plate and a door member comprising a carrying arm passing throughthe base plate and adapted to swing wholly within the face. line of theamb member. f

2. A hinge of the character described consisting of a jamb member havinga base plate and a door member comprisnganl attaching plate, a carryingarm.l andan attaching arm pivoted to the base plate, said carrying armpassing through the amb member Wholly Within the-face line of saidmember.

3. A hinge of the character described"con-V i sisting of a'jamb memberhaving a base plate and a'door member comprising an attaching plate, acarrying arm, an attaching arm pivoted to the base plate, said carryingarm passing through the jamb member wholly within the face line of thejamb member, and an outer plate adapted to cover the j amb member.

4. A hinge of the character described comprising a jamb member having abase plate with a slot, and a door member comprlsing an arc-shapedcarrying arm lying 1n said slot and adapted to swing wholly within theface line of the jamb member and an attaching arm pivoted to the jambmember.

5. A hinge of the character described comprising a jamb member providedwith a slot, a door memberI comprising an arcshaped carrying arm lyingin said slot and an attaching arm pivoted to the jamb member, anda platecovering the face of the jamb member under which the carryingarm moves.

In testimony whereof I affix my signature in presence of two witnesses.

ELI-N. BALDWIN, JR. Witnesses:

J AMES H. BLAKEMAN, Jenni-Bumper-

